
Radon | US EPA
4 days ago · Radon is a naturally occurring radioactive gas that can cause lung cancer. You can’t see or smell radon. Testing is the only way to know your level of exposure. Radon can have a …
Radon | Health & Human Services - hhs.iowa.gov
Radon is a natural radioactive gas that can cause cancer. You can’t see, smell or taste it, but radon may be in your home. According to the Environmental Protection Agency (EPA), radon …
Radon - Wikipedia
Radon is a contaminant that affects indoor air quality worldwide. Because radon is denser than air it accumulates in basements and crawlspaces under dwellings.
Radon and Your Health | Radon | CDC
Dec 11, 2025 · Radon is an odorless, invisible, radioactive gas naturally released from rocks, soil, and water. Radon can get into homes and buildings through soil, small cracks or holes in your …
Radon Gas: Causes, Exposure, Symptoms & Complications
Radon is a radioactive substance, which means it emits radiation (a type of energy). Radiation can damage your cells, leading to cancer. Experts estimate that radon exposure is the second …
Radon | Definition, Properties, Effects, & Facts | Britannica
Dec 11, 2025 · Radon, chemical element, a heavy radioactive gas of Group 18 (noble gases) of the periodic table, generated by the radioactive decay of radium. It is a colorless gas, 7.5 times …
Invisible Danger: Lung Association Urges Home Testing for Cancer ...
Jan 5, 2026 · January is National Radon Action Month, and the American Lung Association is raising awareness of the potential health risks of radon and the importance of home testing. …
Radon - World Health Organization (WHO)
Jan 25, 2023 · Radon is one of the leading causes of lung cancer. Radon is estimated to cause between 3% to 14% of all lung cancers in a country, depending on the national average radon …
Home - Iowa Radon
Radon is an odorless, colorless and tasteless gas that is harmful to people’s health. Radon comes naturally from the ground, and it can enter and become trapped inside any building without …
Radon | National Institute of Environmental Health Sciences
Sep 10, 2025 · Radon is a naturally occurring radioactive gas that is colorless and odorless. Radon comes from the natural decay of uranium or thorium, elements found in rocks, soils, …